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Capacity Bounds for Diamond Networks With an Orthogonal Broadcast Channel

机译:具有正交广播信道的钻石网络的容量限制

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摘要

A class of diamond networks is studied where the broadcast component is orthogonal and modeled by two independent bit-pipes. New upper and lower bounds on the capacity are derived. The proof technique for the upper bound generalizes the bounding techniques of Ozarow for the Gaussian multiple description problem (1981) and Kang and Liu for the Gaussian diamond network (2011). The lower bound is based on Marton’s coding technique and superposition coding. The bounds are evaluated for Gaussian and binary adder multiple access channels (MACs). For Gaussian MACs, both the lower and upper bounds strengthen the Kang–Liu bounds and establish capacity for interesting ranges of bit-pipe capacities. For binary adder MACs, the capacity is established for all the ranges of bit-pipe capacities.
机译:研究了一类菱形网络,其中广播分量是正交的,并通过两个独立的位管进行建模。得出容量的新上限和下限。上限的证明技术概括了针对高斯多重描述问题(1981年)的Ozarow和针对高斯钻石网络(2011年)的Kang和Liu的边界技术。下限基于Marton的编码技术和叠加编码。为高斯和二进制加法器多路访问通道(MAC)评估边界。对于高斯MAC,上下边界都将增强Kang-Liu边界,并为感兴趣的位管容量范围建立容量。对于二进制加法器MAC,将为所有位管道容量范围建立容量。

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